/*
 * Copyright 1999-2021 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#ifndef HEADER_X509V3_H
#define HEADER_X509V3_H

#include <openssl/bio.h>
#include <openssl/conf.h>
#include <openssl/x509.h>
#include <openssl/x509v3err.h>

#ifdef __cplusplus
extern "C" {
#endif

/* Forward reference */
struct v3_ext_method;
struct v3_ext_ctx;

/* Useful typedefs */

typedef void *(*X509V3_EXT_NEW)(void);
typedef void (*X509V3_EXT_FREE)(void *);
typedef void *(*X509V3_EXT_D2I)(void *, const unsigned char **, long);
typedef int (*X509V3_EXT_I2D)(void *, unsigned char **);
typedef STACK_OF(CONF_VALUE) * (*X509V3_EXT_I2V)(const struct v3_ext_method *method,
                                                 void *ext,
                                                 STACK_OF(CONF_VALUE) * extlist);
typedef void *(*X509V3_EXT_V2I)(const struct v3_ext_method *method,
                                struct v3_ext_ctx *ctx,
                                STACK_OF(CONF_VALUE) * values);
typedef char *(*X509V3_EXT_I2S)(const struct v3_ext_method *method, void *ext);
typedef void *(*X509V3_EXT_S2I)(const struct v3_ext_method *method,
                                struct v3_ext_ctx *ctx,
                                const char *str);
typedef int (*X509V3_EXT_I2R)(const struct v3_ext_method *method, void *ext, BIO *out, int indent);
typedef void *(*X509V3_EXT_R2I)(const struct v3_ext_method *method,
                                struct v3_ext_ctx *ctx,
                                const char *str);

/* V3 extension structure */

struct v3_ext_method {
    int ext_nid;
    int ext_flags;
    /* If this is set the following four fields are ignored */
    ASN1_ITEM_EXP *it;
    /* Old style ASN1 calls */
    X509V3_EXT_NEW ext_new;
    X509V3_EXT_FREE ext_free;
    X509V3_EXT_D2I d2i;
    X509V3_EXT_I2D i2d;
    /* The following pair is used for string extensions */
    X509V3_EXT_I2S i2s;
    X509V3_EXT_S2I s2i;
    /* The following pair is used for multi-valued extensions */
    X509V3_EXT_I2V i2v;
    X509V3_EXT_V2I v2i;
    /* The following are used for raw extensions */
    X509V3_EXT_I2R i2r;
    X509V3_EXT_R2I r2i;
    void *usr_data; /* Any extension specific data */
};

typedef struct X509V3_CONF_METHOD_st {
    char *(*get_string)(void *db, const char *section, const char *value);
    STACK_OF(CONF_VALUE) * (*get_section)(void *db, const char *section);
    void (*free_string)(void *db, char *string);
    void (*free_section)(void *db, STACK_OF(CONF_VALUE) * section);
} X509V3_CONF_METHOD;

/* Context specific info */
struct v3_ext_ctx {
#define CTX_TEST 0x1
#define X509V3_CTX_REPLACE 0x2
    int flags;
    X509 *issuer_cert;
    X509 *subject_cert;
    X509_REQ *subject_req;
    X509_CRL *crl;
    X509V3_CONF_METHOD *db_meth;
    void *db;
    /* Maybe more here */
};

typedef struct v3_ext_method X509V3_EXT_METHOD;

DEFINE_STACK_OF(X509V3_EXT_METHOD)

/* ext_flags values */
#define X509V3_EXT_DYNAMIC 0x1
#define X509V3_EXT_CTX_DEP 0x2
#define X509V3_EXT_MULTILINE 0x4

typedef BIT_STRING_BITNAME ENUMERATED_NAMES;

typedef struct BASIC_CONSTRAINTS_st {
    int ca;
    ASN1_INTEGER *pathlen;
} BASIC_CONSTRAINTS;

typedef struct PKEY_USAGE_PERIOD_st {
    ASN1_GENERALIZEDTIME *notBefore;
    ASN1_GENERALIZEDTIME *notAfter;
} PKEY_USAGE_PERIOD;

typedef struct otherName_st {
    ASN1_OBJECT *type_id;
    ASN1_TYPE *value;
} OTHERNAME;

typedef struct EDIPartyName_st {
    ASN1_STRING *nameAssigner;
    ASN1_STRING *partyName;
} EDIPARTYNAME;

typedef struct GENERAL_NAME_st {
#define GEN_OTHERNAME 0
#define GEN_EMAIL 1
#define GEN_DNS 2
#define GEN_X400 3
#define GEN_DIRNAME 4
#define GEN_EDIPARTY 5
#define GEN_URI 6
#define GEN_IPADD 7
#define GEN_RID 8
    int type;
    union
    {
        char *ptr;
        OTHERNAME *otherName; /* otherName */
        ASN1_IA5STRING *rfc822Name;
        ASN1_IA5STRING *dNSName;
        ASN1_TYPE *x400Address;
        X509_NAME *directoryName;
        EDIPARTYNAME *ediPartyName;
        ASN1_IA5STRING *uniformResourceIdentifier;
        ASN1_OCTET_STRING *iPAddress;
        ASN1_OBJECT *registeredID;
        /* Old names */
        ASN1_OCTET_STRING *ip; /* iPAddress */
        X509_NAME *dirn;       /* dirn */
        ASN1_IA5STRING *ia5;   /* rfc822Name, dNSName,
                                * uniformResourceIdentifier */
        ASN1_OBJECT *rid;      /* registeredID */
        ASN1_TYPE *other;      /* x400Address */
    } d;
} GENERAL_NAME;

typedef struct ACCESS_DESCRIPTION_st {
    ASN1_OBJECT *method;
    GENERAL_NAME *location;
} ACCESS_DESCRIPTION;

typedef STACK_OF(ACCESS_DESCRIPTION) AUTHORITY_INFO_ACCESS;

typedef STACK_OF(ASN1_OBJECT) EXTENDED_KEY_USAGE;

typedef STACK_OF(ASN1_INTEGER) TLS_FEATURE;

DEFINE_STACK_OF(GENERAL_NAME)
typedef STACK_OF(GENERAL_NAME) GENERAL_NAMES;
DEFINE_STACK_OF(GENERAL_NAMES)

DEFINE_STACK_OF(ACCESS_DESCRIPTION)

typedef struct DIST_POINT_NAME_st {
    int type;
    union
    {
        GENERAL_NAMES *fullname;
        STACK_OF(X509_NAME_ENTRY) * relativename;
    } name;
    /* If relativename then this contains the full distribution point name */
    X509_NAME *dpname;
} DIST_POINT_NAME;
/* All existing reasons */
#define CRLDP_ALL_REASONS 0x807f

#define CRL_REASON_NONE -1
#define CRL_REASON_UNSPECIFIED 0
#define CRL_REASON_KEY_COMPROMISE 1
#define CRL_REASON_CA_COMPROMISE 2
#define CRL_REASON_AFFILIATION_CHANGED 3
#define CRL_REASON_SUPERSEDED 4
#define CRL_REASON_CESSATION_OF_OPERATION 5
#define CRL_REASON_CERTIFICATE_HOLD 6
#define CRL_REASON_REMOVE_FROM_CRL 8
#define CRL_REASON_PRIVILEGE_WITHDRAWN 9
#define CRL_REASON_AA_COMPROMISE 10

struct DIST_POINT_st {
    DIST_POINT_NAME *distpoint;
    ASN1_BIT_STRING *reasons;
    GENERAL_NAMES *CRLissuer;
    int dp_reasons;
};

typedef STACK_OF(DIST_POINT) CRL_DIST_POINTS;

DEFINE_STACK_OF(DIST_POINT)

struct AUTHORITY_KEYID_st {
    ASN1_OCTET_STRING *keyid;
    GENERAL_NAMES *issuer;
    ASN1_INTEGER *serial;
};

/* Strong extranet structures */

typedef struct SXNET_ID_st {
    ASN1_INTEGER *zone;
    ASN1_OCTET_STRING *user;
} SXNETID;

DEFINE_STACK_OF(SXNETID)

typedef struct SXNET_st {
    ASN1_INTEGER *version;
    STACK_OF(SXNETID) * ids;
} SXNET;

typedef struct NOTICEREF_st {
    ASN1_STRING *organization;
    STACK_OF(ASN1_INTEGER) * noticenos;
} NOTICEREF;

typedef struct USERNOTICE_st {
    NOTICEREF *noticeref;
    ASN1_STRING *exptext;
} USERNOTICE;

typedef struct POLICYQUALINFO_st {
    ASN1_OBJECT *pqualid;
    union
    {
        ASN1_IA5STRING *cpsuri;
        USERNOTICE *usernotice;
        ASN1_TYPE *other;
    } d;
} POLICYQUALINFO;

DEFINE_STACK_OF(POLICYQUALINFO)

typedef struct POLICYINFO_st {
    ASN1_OBJECT *policyid;
    STACK_OF(POLICYQUALINFO) * qualifiers;
} POLICYINFO;

typedef STACK_OF(POLICYINFO) CERTIFICATEPOLICIES;

DEFINE_STACK_OF(POLICYINFO)

typedef struct POLICY_MAPPING_st {
    ASN1_OBJECT *issuerDomainPolicy;
    ASN1_OBJECT *subjectDomainPolicy;
} POLICY_MAPPING;

DEFINE_STACK_OF(POLICY_MAPPING)

typedef STACK_OF(POLICY_MAPPING) POLICY_MAPPINGS;

typedef struct GENERAL_SUBTREE_st {
    GENERAL_NAME *base;
    ASN1_INTEGER *minimum;
    ASN1_INTEGER *maximum;
} GENERAL_SUBTREE;

DEFINE_STACK_OF(GENERAL_SUBTREE)

struct NAME_CONSTRAINTS_st {
    STACK_OF(GENERAL_SUBTREE) * permittedSubtrees;
    STACK_OF(GENERAL_SUBTREE) * excludedSubtrees;
};

typedef struct POLICY_CONSTRAINTS_st {
    ASN1_INTEGER *requireExplicitPolicy;
    ASN1_INTEGER *inhibitPolicyMapping;
} POLICY_CONSTRAINTS;

/* Proxy certificate structures, see RFC 3820 */
typedef struct PROXY_POLICY_st {
    ASN1_OBJECT *policyLanguage;
    ASN1_OCTET_STRING *policy;
} PROXY_POLICY;

typedef struct PROXY_CERT_INFO_EXTENSION_st {
    ASN1_INTEGER *pcPathLengthConstraint;
    PROXY_POLICY *proxyPolicy;
} PROXY_CERT_INFO_EXTENSION;

DECLARE_ASN1_FUNCTIONS(PROXY_POLICY)
DECLARE_ASN1_FUNCTIONS(PROXY_CERT_INFO_EXTENSION)

struct ISSUING_DIST_POINT_st {
    DIST_POINT_NAME *distpoint;
    int onlyuser;
    int onlyCA;
    ASN1_BIT_STRING *onlysomereasons;
    int indirectCRL;
    int onlyattr;
};

/* Values in idp_flags field */
/* IDP present */
#define IDP_PRESENT 0x1
/* IDP values inconsistent */
#define IDP_INVALID 0x2
/* onlyuser true */
#define IDP_ONLYUSER 0x4
/* onlyCA true */
#define IDP_ONLYCA 0x8
/* onlyattr true */
#define IDP_ONLYATTR 0x10
/* indirectCRL true */
#define IDP_INDIRECT 0x20
/* onlysomereasons present */
#define IDP_REASONS 0x40

#define X509V3_conf_err(val)                                                 \
    ERR_add_error_data(6, "section:", (val)->section, ",name:", (val)->name, \
                       ",value:", (val)->value)

#define X509V3_set_ctx_test(ctx) X509V3_set_ctx(ctx, NULL, NULL, NULL, NULL, CTX_TEST)
#define X509V3_set_ctx_nodb(ctx) (ctx)->db = NULL;

#define EXT_BITSTRING(nid, table)                                                                 \
    {                                                                                             \
        nid, 0, ASN1_ITEM_ref(ASN1_BIT_STRING), 0, 0, 0, 0, 0, 0,                                 \
            (X509V3_EXT_I2V)i2v_ASN1_BIT_STRING, (X509V3_EXT_V2I)v2i_ASN1_BIT_STRING, NULL, NULL, \
            table                                                                                 \
    }

#define EXT_IA5STRING(nid)                                                                     \
    {                                                                                          \
        nid, 0, ASN1_ITEM_ref(ASN1_IA5STRING), 0, 0, 0, 0, (X509V3_EXT_I2S)i2s_ASN1_IA5STRING, \
            (X509V3_EXT_S2I)s2i_ASN1_IA5STRING, 0, 0, 0, 0, NULL                               \
    }

#define EXT_END \
    { -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }

/* X509_PURPOSE stuff */

#define EXFLAG_BCONS 0x1
#define EXFLAG_KUSAGE 0x2
#define EXFLAG_XKUSAGE 0x4
#define EXFLAG_NSCERT 0x8

#define EXFLAG_CA 0x10
/* Really self issued not necessarily self signed */
#define EXFLAG_SI 0x20
#define EXFLAG_V1 0x40
#define EXFLAG_INVALID 0x80
/* EXFLAG_SET is set to indicate that some values have been precomputed */
#define EXFLAG_SET 0x100
#define EXFLAG_CRITICAL 0x200
#define EXFLAG_PROXY 0x400

#define EXFLAG_INVALID_POLICY 0x800
#define EXFLAG_FRESHEST 0x1000
#define EXFLAG_SS 0x2000 /* cert is apparently self-signed */

#define EXFLAG_NO_FINGERPRINT 0x100000

#define KU_DIGITAL_SIGNATURE 0x0080
#define KU_NON_REPUDIATION 0x0040
#define KU_KEY_ENCIPHERMENT 0x0020
#define KU_DATA_ENCIPHERMENT 0x0010
#define KU_KEY_AGREEMENT 0x0008
#define KU_KEY_CERT_SIGN 0x0004
#define KU_CRL_SIGN 0x0002
#define KU_ENCIPHER_ONLY 0x0001
#define KU_DECIPHER_ONLY 0x8000

#define NS_SSL_CLIENT 0x80
#define NS_SSL_SERVER 0x40
#define NS_SMIME 0x20
#define NS_OBJSIGN 0x10
#define NS_SSL_CA 0x04
#define NS_SMIME_CA 0x02
#define NS_OBJSIGN_CA 0x01
#define NS_ANY_CA (NS_SSL_CA | NS_SMIME_CA | NS_OBJSIGN_CA)

#define XKU_SSL_SERVER 0x1
#define XKU_SSL_CLIENT 0x2
#define XKU_SMIME 0x4
#define XKU_CODE_SIGN 0x8
#define XKU_SGC 0x10
#define XKU_OCSP_SIGN 0x20
#define XKU_TIMESTAMP 0x40
#define XKU_DVCS 0x80
#define XKU_ANYEKU 0x100

#define X509_PURPOSE_DYNAMIC 0x1
#define X509_PURPOSE_DYNAMIC_NAME 0x2

typedef struct x509_purpose_st {
    int purpose;
    int trust; /* Default trust ID */
    int flags;
    int (*check_purpose)(const struct x509_purpose_st *, const X509 *, int);
    char *name;
    char *sname;
    void *usr_data;
} X509_PURPOSE;

#define X509_PURPOSE_SSL_CLIENT 1
#define X509_PURPOSE_SSL_SERVER 2
#define X509_PURPOSE_NS_SSL_SERVER 3
#define X509_PURPOSE_SMIME_SIGN 4
#define X509_PURPOSE_SMIME_ENCRYPT 5
#define X509_PURPOSE_CRL_SIGN 6
#define X509_PURPOSE_ANY 7
#define X509_PURPOSE_OCSP_HELPER 8
#define X509_PURPOSE_TIMESTAMP_SIGN 9

#define X509_PURPOSE_MIN 1
#define X509_PURPOSE_MAX 9

/* Flags for X509V3_EXT_print() */

#define X509V3_EXT_UNKNOWN_MASK (0xfL << 16)
/* Return error for unknown extensions */
#define X509V3_EXT_DEFAULT 0
/* Print error for unknown extensions */
#define X509V3_EXT_ERROR_UNKNOWN (1L << 16)
/* ASN1 parse unknown extensions */
#define X509V3_EXT_PARSE_UNKNOWN (2L << 16)
/* BIO_dump unknown extensions */
#define X509V3_EXT_DUMP_UNKNOWN (3L << 16)

/* Flags for X509V3_add1_i2d */

#define X509V3_ADD_OP_MASK 0xfL
#define X509V3_ADD_DEFAULT 0L
#define X509V3_ADD_APPEND 1L
#define X509V3_ADD_REPLACE 2L
#define X509V3_ADD_REPLACE_EXISTING 3L
#define X509V3_ADD_KEEP_EXISTING 4L
#define X509V3_ADD_DELETE 5L
#define X509V3_ADD_SILENT 0x10

DEFINE_STACK_OF(X509_PURPOSE)

DECLARE_ASN1_FUNCTIONS(BASIC_CONSTRAINTS)

DECLARE_ASN1_FUNCTIONS(SXNET)
DECLARE_ASN1_FUNCTIONS(SXNETID)

int SXNET_add_id_asc(SXNET **psx, const char *zone, const char *user, int userlen);
int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, const char *user, int userlen);
int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *izone, const char *user, int userlen);

ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, const char *zone);
ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone);
ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone);

DECLARE_ASN1_FUNCTIONS(AUTHORITY_KEYID)

DECLARE_ASN1_FUNCTIONS(PKEY_USAGE_PERIOD)

DECLARE_ASN1_FUNCTIONS(GENERAL_NAME)
GENERAL_NAME *GENERAL_NAME_dup(GENERAL_NAME *a);
int GENERAL_NAME_cmp(GENERAL_NAME *a, GENERAL_NAME *b);

ASN1_BIT_STRING *v2i_ASN1_BIT_STRING(X509V3_EXT_METHOD *method,
                                     X509V3_CTX *ctx,
                                     STACK_OF(CONF_VALUE) * nval);
STACK_OF(CONF_VALUE) * i2v_ASN1_BIT_STRING(X509V3_EXT_METHOD *method,
                                           ASN1_BIT_STRING *bits,
                                           STACK_OF(CONF_VALUE) * extlist);
char *i2s_ASN1_IA5STRING(X509V3_EXT_METHOD *method, ASN1_IA5STRING *ia5);
ASN1_IA5STRING *s2i_ASN1_IA5STRING(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, const char *str);

STACK_OF(CONF_VALUE) *
    i2v_GENERAL_NAME(X509V3_EXT_METHOD *method, GENERAL_NAME *gen, STACK_OF(CONF_VALUE) * ret);
int GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen);

DECLARE_ASN1_FUNCTIONS(GENERAL_NAMES)

STACK_OF(CONF_VALUE) * i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method,
                                         GENERAL_NAMES *gen,
                                         STACK_OF(CONF_VALUE) * extlist);
GENERAL_NAMES *v2i_GENERAL_NAMES(const X509V3_EXT_METHOD *method,
                                 X509V3_CTX *ctx,
                                 STACK_OF(CONF_VALUE) * nval);

DECLARE_ASN1_FUNCTIONS(OTHERNAME)
DECLARE_ASN1_FUNCTIONS(EDIPARTYNAME)
int OTHERNAME_cmp(OTHERNAME *a, OTHERNAME *b);
void GENERAL_NAME_set0_value(GENERAL_NAME *a, int type, void *value);
void *GENERAL_NAME_get0_value(const GENERAL_NAME *a, int *ptype);
int GENERAL_NAME_set0_othername(GENERAL_NAME *gen, ASN1_OBJECT *oid, ASN1_TYPE *value);
int GENERAL_NAME_get0_otherName(const GENERAL_NAME *gen, ASN1_OBJECT **poid, ASN1_TYPE **pvalue);

char *i2s_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method, const ASN1_OCTET_STRING *ia5);
ASN1_OCTET_STRING *s2i_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method,
                                         X509V3_CTX *ctx,
                                         const char *str);

DECLARE_ASN1_FUNCTIONS(EXTENDED_KEY_USAGE)
int i2a_ACCESS_DESCRIPTION(BIO *bp, const ACCESS_DESCRIPTION *a);

DECLARE_ASN1_ALLOC_FUNCTIONS(TLS_FEATURE)

DECLARE_ASN1_FUNCTIONS(CERTIFICATEPOLICIES)
DECLARE_ASN1_FUNCTIONS(POLICYINFO)
DECLARE_ASN1_FUNCTIONS(POLICYQUALINFO)
DECLARE_ASN1_FUNCTIONS(USERNOTICE)
DECLARE_ASN1_FUNCTIONS(NOTICEREF)

DECLARE_ASN1_FUNCTIONS(CRL_DIST_POINTS)
DECLARE_ASN1_FUNCTIONS(DIST_POINT)
DECLARE_ASN1_FUNCTIONS(DIST_POINT_NAME)
DECLARE_ASN1_FUNCTIONS(ISSUING_DIST_POINT)

int DIST_POINT_set_dpname(DIST_POINT_NAME *dpn, X509_NAME *iname);

int NAME_CONSTRAINTS_check(X509 *x, NAME_CONSTRAINTS *nc);
int NAME_CONSTRAINTS_check_CN(X509 *x, NAME_CONSTRAINTS *nc);

DECLARE_ASN1_FUNCTIONS(ACCESS_DESCRIPTION)
DECLARE_ASN1_FUNCTIONS(AUTHORITY_INFO_ACCESS)

DECLARE_ASN1_ITEM(POLICY_MAPPING)
DECLARE_ASN1_ALLOC_FUNCTIONS(POLICY_MAPPING)
DECLARE_ASN1_ITEM(POLICY_MAPPINGS)

DECLARE_ASN1_ITEM(GENERAL_SUBTREE)
DECLARE_ASN1_ALLOC_FUNCTIONS(GENERAL_SUBTREE)

DECLARE_ASN1_ITEM(NAME_CONSTRAINTS)
DECLARE_ASN1_ALLOC_FUNCTIONS(NAME_CONSTRAINTS)

DECLARE_ASN1_ALLOC_FUNCTIONS(POLICY_CONSTRAINTS)
DECLARE_ASN1_ITEM(POLICY_CONSTRAINTS)

GENERAL_NAME *a2i_GENERAL_NAME(GENERAL_NAME *out,
                               const X509V3_EXT_METHOD *method,
                               X509V3_CTX *ctx,
                               int gen_type,
                               const char *value,
                               int is_nc);

#ifdef HEADER_CONF_H
GENERAL_NAME *v2i_GENERAL_NAME(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx, CONF_VALUE *cnf);
GENERAL_NAME *v2i_GENERAL_NAME_ex(GENERAL_NAME *out,
                                  const X509V3_EXT_METHOD *method,
                                  X509V3_CTX *ctx,
                                  CONF_VALUE *cnf,
                                  int is_nc);
void X509V3_conf_free(CONF_VALUE *val);

X509_EXTENSION *X509V3_EXT_nconf_nid(CONF *conf, X509V3_CTX *ctx, int ext_nid, const char *value);
X509_EXTENSION *X509V3_EXT_nconf(CONF *conf, X509V3_CTX *ctx, const char *name, const char *value);
int X509V3_EXT_add_nconf_sk(CONF *conf,
                            X509V3_CTX *ctx,
                            const char *section,
                            STACK_OF(X509_EXTENSION) * *sk);
int X509V3_EXT_add_nconf(CONF *conf, X509V3_CTX *ctx, const char *section, X509 *cert);
int X509V3_EXT_REQ_add_nconf(CONF *conf, X509V3_CTX *ctx, const char *section, X509_REQ *req);
int X509V3_EXT_CRL_add_nconf(CONF *conf, X509V3_CTX *ctx, const char *section, X509_CRL *crl);

X509_EXTENSION *X509V3_EXT_conf_nid(LHASH_OF(CONF_VALUE) * conf,
                                    X509V3_CTX *ctx,
                                    int ext_nid,
                                    const char *value);
X509_EXTENSION *X509V3_EXT_conf(LHASH_OF(CONF_VALUE) * conf,
                                X509V3_CTX *ctx,
                                const char *name,
                                const char *value);
int X509V3_EXT_add_conf(LHASH_OF(CONF_VALUE) * conf,
                        X509V3_CTX *ctx,
                        const char *section,
                        X509 *cert);
int X509V3_EXT_REQ_add_conf(LHASH_OF(CONF_VALUE) * conf,
                            X509V3_CTX *ctx,
                            const char *section,
                            X509_REQ *req);
int X509V3_EXT_CRL_add_conf(LHASH_OF(CONF_VALUE) * conf,
                            X509V3_CTX *ctx,
                            const char *section,
                            X509_CRL *crl);

int X509V3_add_value_bool_nf(const char *name, int asn1_bool, STACK_OF(CONF_VALUE) * *extlist);
int X509V3_get_value_bool(const CONF_VALUE *value, int *asn1_bool);
int X509V3_get_value_int(const CONF_VALUE *value, ASN1_INTEGER **aint);
void X509V3_set_nconf(X509V3_CTX *ctx, CONF *conf);
void X509V3_set_conf_lhash(X509V3_CTX *ctx, LHASH_OF(CONF_VALUE) * lhash);
#endif

char *X509V3_get_string(X509V3_CTX *ctx, const char *name, const char *section);
STACK_OF(CONF_VALUE) * X509V3_get_section(X509V3_CTX *ctx, const char *section);
void X509V3_string_free(X509V3_CTX *ctx, char *str);
void X509V3_section_free(X509V3_CTX *ctx, STACK_OF(CONF_VALUE) * section);
void X509V3_set_ctx(X509V3_CTX *ctx,
                    X509 *issuer,
                    X509 *subject,
                    X509_REQ *req,
                    X509_CRL *crl,
                    int flags);

int X509V3_add_value(const char *name, const char *value, STACK_OF(CONF_VALUE) * *extlist);
int X509V3_add_value_uchar(const char *name,
                           const unsigned char *value,
                           STACK_OF(CONF_VALUE) * *extlist);
int X509V3_add_value_bool(const char *name, int asn1_bool, STACK_OF(CONF_VALUE) * *extlist);
int X509V3_add_value_int(const char *name,
                         const ASN1_INTEGER *aint,
                         STACK_OF(CONF_VALUE) * *extlist);
char *i2s_ASN1_INTEGER(X509V3_EXT_METHOD *meth, const ASN1_INTEGER *aint);
ASN1_INTEGER *s2i_ASN1_INTEGER(X509V3_EXT_METHOD *meth, const char *value);
char *i2s_ASN1_ENUMERATED(X509V3_EXT_METHOD *meth, const ASN1_ENUMERATED *aint);
char *i2s_ASN1_ENUMERATED_TABLE(X509V3_EXT_METHOD *meth, const ASN1_ENUMERATED *aint);
int X509V3_EXT_add(X509V3_EXT_METHOD *ext);
int X509V3_EXT_add_list(X509V3_EXT_METHOD *extlist);
int X509V3_EXT_add_alias(int nid_to, int nid_from);
void X509V3_EXT_cleanup(void);

const X509V3_EXT_METHOD *X509V3_EXT_get(X509_EXTENSION *ext);
const X509V3_EXT_METHOD *X509V3_EXT_get_nid(int nid);
int X509V3_add_standard_extensions(void);
STACK_OF(CONF_VALUE) * X509V3_parse_list(const char *line);
void *X509V3_EXT_d2i(X509_EXTENSION *ext);
void *X509V3_get_d2i(const STACK_OF(X509_EXTENSION) * x, int nid, int *crit, int *idx);

X509_EXTENSION *X509V3_EXT_i2d(int ext_nid, int crit, void *ext_struc);
int X509V3_add1_i2d(STACK_OF(X509_EXTENSION) * *x,
                    int nid,
                    void *value,
                    int crit,
                    unsigned long flags);

#if OPENSSL_API_COMPAT < 0x10100000L
/* The new declarations are in crypto.h, but the old ones were here. */
#    define hex_to_string OPENSSL_buf2hexstr
#    define string_to_hex OPENSSL_hexstr2buf
#endif

void X509V3_EXT_val_prn(BIO *out, STACK_OF(CONF_VALUE) * val, int indent, int ml);
int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent);
#ifndef OPENSSL_NO_STDIO
int X509V3_EXT_print_fp(FILE *out, X509_EXTENSION *ext, int flag, int indent);
#endif
int X509V3_extensions_print(BIO *out,
                            const char *title,
                            const STACK_OF(X509_EXTENSION) * exts,
                            unsigned long flag,
                            int indent);

int X509_check_ca(X509 *x);
int X509_check_purpose(X509 *x, int id, int ca);
int X509_supported_extension(X509_EXTENSION *ex);
int X509_PURPOSE_set(int *p, int purpose);
int X509_check_issued(X509 *issuer, X509 *subject);
int X509_check_akid(X509 *issuer, AUTHORITY_KEYID *akid);
void X509_set_proxy_flag(X509 *x);
void X509_set_proxy_pathlen(X509 *x, long l);
long X509_get_proxy_pathlen(X509 *x);

uint32_t X509_get_extension_flags(X509 *x);
uint32_t X509_get_key_usage(X509 *x);
uint32_t X509_get_extended_key_usage(X509 *x);
const ASN1_OCTET_STRING *X509_get0_subject_key_id(X509 *x);
const ASN1_OCTET_STRING *X509_get0_authority_key_id(X509 *x);
const GENERAL_NAMES *X509_get0_authority_issuer(X509 *x);
const ASN1_INTEGER *X509_get0_authority_serial(X509 *x);

int X509_PURPOSE_get_count(void);
X509_PURPOSE *X509_PURPOSE_get0(int idx);
int X509_PURPOSE_get_by_sname(const char *sname);
int X509_PURPOSE_get_by_id(int id);
int X509_PURPOSE_add(int id,
                     int trust,
                     int flags,
                     int (*ck)(const X509_PURPOSE *, const X509 *, int),
                     const char *name,
                     const char *sname,
                     void *arg);
char *X509_PURPOSE_get0_name(const X509_PURPOSE *xp);
char *X509_PURPOSE_get0_sname(const X509_PURPOSE *xp);
int X509_PURPOSE_get_trust(const X509_PURPOSE *xp);
void X509_PURPOSE_cleanup(void);
int X509_PURPOSE_get_id(const X509_PURPOSE *);

STACK_OF(OPENSSL_STRING) * X509_get1_email(X509 *x);
STACK_OF(OPENSSL_STRING) * X509_REQ_get1_email(X509_REQ *x);
void X509_email_free(STACK_OF(OPENSSL_STRING) * sk);
STACK_OF(OPENSSL_STRING) * X509_get1_ocsp(X509 *x);
/* Flags for X509_check_* functions */

/*
 * Always check subject name for host match even if subject alt names present
 */
#define X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT 0x1
/* Disable wildcard matching for dnsName fields and common name. */
#define X509_CHECK_FLAG_NO_WILDCARDS 0x2
/* Wildcards must not match a partial label. */
#define X509_CHECK_FLAG_NO_PARTIAL_WILDCARDS 0x4
/* Allow (non-partial) wildcards to match multiple labels. */
#define X509_CHECK_FLAG_MULTI_LABEL_WILDCARDS 0x8
/* Constraint verifier subdomain patterns to match a single labels. */
#define X509_CHECK_FLAG_SINGLE_LABEL_SUBDOMAINS 0x10
/* Never check the subject CN */
#define X509_CHECK_FLAG_NEVER_CHECK_SUBJECT 0x20
/*
 * Match reference identifiers starting with "." to any sub-domain.
 * This is a non-public flag, turned on implicitly when the subject
 * reference identity is a DNS name.
 */
#define _X509_CHECK_FLAG_DOT_SUBDOMAINS 0x8000

int X509_check_host(X509 *x, const char *chk, size_t chklen, unsigned int flags, char **peername);
int X509_check_email(X509 *x, const char *chk, size_t chklen, unsigned int flags);
int X509_check_ip(X509 *x, const unsigned char *chk, size_t chklen, unsigned int flags);
int X509_check_ip_asc(X509 *x, const char *ipasc, unsigned int flags);

ASN1_OCTET_STRING *a2i_IPADDRESS(const char *ipasc);
ASN1_OCTET_STRING *a2i_IPADDRESS_NC(const char *ipasc);
int X509V3_NAME_from_section(X509_NAME *nm, STACK_OF(CONF_VALUE) * dn_sk, unsigned long chtype);

void X509_POLICY_NODE_print(BIO *out, X509_POLICY_NODE *node, int indent);
DEFINE_STACK_OF(X509_POLICY_NODE)

#ifndef OPENSSL_NO_RFC3779
typedef struct ASRange_st {
    ASN1_INTEGER *min, *max;
} ASRange;

#    define ASIdOrRange_id 0
#    define ASIdOrRange_range 1

typedef struct ASIdOrRange_st {
    int type;
    union
    {
        ASN1_INTEGER *id;
        ASRange *range;
    } u;
} ASIdOrRange;

typedef STACK_OF(ASIdOrRange) ASIdOrRanges;
DEFINE_STACK_OF(ASIdOrRange)

#    define ASIdentifierChoice_inherit 0
#    define ASIdentifierChoice_asIdsOrRanges 1

typedef struct ASIdentifierChoice_st {
    int type;
    union
    {
        ASN1_NULL *inherit;
        ASIdOrRanges *asIdsOrRanges;
    } u;
} ASIdentifierChoice;

typedef struct ASIdentifiers_st {
    ASIdentifierChoice *asnum, *rdi;
} ASIdentifiers;

DECLARE_ASN1_FUNCTIONS(ASRange)
DECLARE_ASN1_FUNCTIONS(ASIdOrRange)
DECLARE_ASN1_FUNCTIONS(ASIdentifierChoice)
DECLARE_ASN1_FUNCTIONS(ASIdentifiers)

typedef struct IPAddressRange_st {
    ASN1_BIT_STRING *min, *max;
} IPAddressRange;

#    define IPAddressOrRange_addressPrefix 0
#    define IPAddressOrRange_addressRange 1

typedef struct IPAddressOrRange_st {
    int type;
    union
    {
        ASN1_BIT_STRING *addressPrefix;
        IPAddressRange *addressRange;
    } u;
} IPAddressOrRange;

typedef STACK_OF(IPAddressOrRange) IPAddressOrRanges;
DEFINE_STACK_OF(IPAddressOrRange)

#    define IPAddressChoice_inherit 0
#    define IPAddressChoice_addressesOrRanges 1

typedef struct IPAddressChoice_st {
    int type;
    union
    {
        ASN1_NULL *inherit;
        IPAddressOrRanges *addressesOrRanges;
    } u;
} IPAddressChoice;

typedef struct IPAddressFamily_st {
    ASN1_OCTET_STRING *addressFamily;
    IPAddressChoice *ipAddressChoice;
} IPAddressFamily;

typedef STACK_OF(IPAddressFamily) IPAddrBlocks;
DEFINE_STACK_OF(IPAddressFamily)

DECLARE_ASN1_FUNCTIONS(IPAddressRange)
DECLARE_ASN1_FUNCTIONS(IPAddressOrRange)
DECLARE_ASN1_FUNCTIONS(IPAddressChoice)
DECLARE_ASN1_FUNCTIONS(IPAddressFamily)

/*
 * API tag for elements of the ASIdentifer SEQUENCE.
 */
#    define V3_ASID_ASNUM 0
#    define V3_ASID_RDI 1

/*
 * AFI values, assigned by IANA.  It'd be nice to make the AFI
 * handling code totally generic, but there are too many little things
 * that would need to be defined for other address families for it to
 * be worth the trouble.
 */
#    define IANA_AFI_IPV4 1
#    define IANA_AFI_IPV6 2

/*
 * Utilities to construct and extract values from RFC3779 extensions,
 * since some of the encodings (particularly for IP address prefixes
 * and ranges) are a bit tedious to work with directly.
 */
int X509v3_asid_add_inherit(ASIdentifiers *asid, int which);
int X509v3_asid_add_id_or_range(ASIdentifiers *asid,
                                int which,
                                ASN1_INTEGER *min,
                                ASN1_INTEGER *max);
int X509v3_addr_add_inherit(IPAddrBlocks *addr, const unsigned afi, const unsigned *safi);
int X509v3_addr_add_prefix(IPAddrBlocks *addr,
                           const unsigned afi,
                           const unsigned *safi,
                           unsigned char *a,
                           const int prefixlen);
int X509v3_addr_add_range(IPAddrBlocks *addr,
                          const unsigned afi,
                          const unsigned *safi,
                          unsigned char *min,
                          unsigned char *max);
unsigned X509v3_addr_get_afi(const IPAddressFamily *f);
int X509v3_addr_get_range(IPAddressOrRange *aor,
                          const unsigned afi,
                          unsigned char *min,
                          unsigned char *max,
                          const int length);

/*
 * Canonical forms.
 */
int X509v3_asid_is_canonical(ASIdentifiers *asid);
int X509v3_addr_is_canonical(IPAddrBlocks *addr);
int X509v3_asid_canonize(ASIdentifiers *asid);
int X509v3_addr_canonize(IPAddrBlocks *addr);

/*
 * Tests for inheritance and containment.
 */
int X509v3_asid_inherits(ASIdentifiers *asid);
int X509v3_addr_inherits(IPAddrBlocks *addr);
int X509v3_asid_subset(ASIdentifiers *a, ASIdentifiers *b);
int X509v3_addr_subset(IPAddrBlocks *a, IPAddrBlocks *b);

/*
 * Check whether RFC 3779 extensions nest properly in chains.
 */
int X509v3_asid_validate_path(X509_STORE_CTX *);
int X509v3_addr_validate_path(X509_STORE_CTX *);
int X509v3_asid_validate_resource_set(STACK_OF(X509) * chain,
                                      ASIdentifiers *ext,
                                      int allow_inheritance);
int X509v3_addr_validate_resource_set(STACK_OF(X509) * chain,
                                      IPAddrBlocks *ext,
                                      int allow_inheritance);

#endif /* OPENSSL_NO_RFC3779 */

DEFINE_STACK_OF(ASN1_STRING)

/*
 * Admission Syntax
 */
typedef struct NamingAuthority_st NAMING_AUTHORITY;
typedef struct ProfessionInfo_st PROFESSION_INFO;
typedef struct Admissions_st ADMISSIONS;
typedef struct AdmissionSyntax_st ADMISSION_SYNTAX;
DECLARE_ASN1_FUNCTIONS(NAMING_AUTHORITY)
DECLARE_ASN1_FUNCTIONS(PROFESSION_INFO)
DECLARE_ASN1_FUNCTIONS(ADMISSIONS)
DECLARE_ASN1_FUNCTIONS(ADMISSION_SYNTAX)
DEFINE_STACK_OF(ADMISSIONS)
DEFINE_STACK_OF(PROFESSION_INFO)
typedef STACK_OF(PROFESSION_INFO) PROFESSION_INFOS;

const ASN1_OBJECT *NAMING_AUTHORITY_get0_authorityId(const NAMING_AUTHORITY *n);
const ASN1_IA5STRING *NAMING_AUTHORITY_get0_authorityURL(const NAMING_AUTHORITY *n);
const ASN1_STRING *NAMING_AUTHORITY_get0_authorityText(const NAMING_AUTHORITY *n);
void NAMING_AUTHORITY_set0_authorityId(NAMING_AUTHORITY *n, ASN1_OBJECT *namingAuthorityId);
void NAMING_AUTHORITY_set0_authorityURL(NAMING_AUTHORITY *n, ASN1_IA5STRING *namingAuthorityUrl);
void NAMING_AUTHORITY_set0_authorityText(NAMING_AUTHORITY *n, ASN1_STRING *namingAuthorityText);

const GENERAL_NAME *ADMISSION_SYNTAX_get0_admissionAuthority(const ADMISSION_SYNTAX *as);
void ADMISSION_SYNTAX_set0_admissionAuthority(ADMISSION_SYNTAX *as, GENERAL_NAME *aa);
const STACK_OF(ADMISSIONS) * ADMISSION_SYNTAX_get0_contentsOfAdmissions(const ADMISSION_SYNTAX *as);
void ADMISSION_SYNTAX_set0_contentsOfAdmissions(ADMISSION_SYNTAX *as, STACK_OF(ADMISSIONS) * a);
const GENERAL_NAME *ADMISSIONS_get0_admissionAuthority(const ADMISSIONS *a);
void ADMISSIONS_set0_admissionAuthority(ADMISSIONS *a, GENERAL_NAME *aa);
const NAMING_AUTHORITY *ADMISSIONS_get0_namingAuthority(const ADMISSIONS *a);
void ADMISSIONS_set0_namingAuthority(ADMISSIONS *a, NAMING_AUTHORITY *na);
const PROFESSION_INFOS *ADMISSIONS_get0_professionInfos(const ADMISSIONS *a);
void ADMISSIONS_set0_professionInfos(ADMISSIONS *a, PROFESSION_INFOS *pi);
const ASN1_OCTET_STRING *PROFESSION_INFO_get0_addProfessionInfo(const PROFESSION_INFO *pi);
void PROFESSION_INFO_set0_addProfessionInfo(PROFESSION_INFO *pi, ASN1_OCTET_STRING *aos);
const NAMING_AUTHORITY *PROFESSION_INFO_get0_namingAuthority(const PROFESSION_INFO *pi);
void PROFESSION_INFO_set0_namingAuthority(PROFESSION_INFO *pi, NAMING_AUTHORITY *na);
const STACK_OF(ASN1_STRING) * PROFESSION_INFO_get0_professionItems(const PROFESSION_INFO *pi);
void PROFESSION_INFO_set0_professionItems(PROFESSION_INFO *pi, STACK_OF(ASN1_STRING) * as);
const STACK_OF(ASN1_OBJECT) * PROFESSION_INFO_get0_professionOIDs(const PROFESSION_INFO *pi);
void PROFESSION_INFO_set0_professionOIDs(PROFESSION_INFO *pi, STACK_OF(ASN1_OBJECT) * po);
const ASN1_PRINTABLESTRING *PROFESSION_INFO_get0_registrationNumber(const PROFESSION_INFO *pi);
void PROFESSION_INFO_set0_registrationNumber(PROFESSION_INFO *pi, ASN1_PRINTABLESTRING *rn);

#ifdef __cplusplus
}
#endif
#endif
